Home / 20,210.96-30,297.80-18,550.46

Finding the Fourth Proportional to 20,210.96, 30,297.80 and 18,550.46

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Solution

The fourth proportional to 20,210.96, 30,297.80 and 18,550.46 is: 27,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.96 : 30,297.80 = 18,550.46 : x
  2. Step 2: Convert to fraction form
    20,210.96/30,297.80 = 18,550.46/x
  3. Step 3: Cross multiply
    20,210.96x = 30,297.80 × 18,550.46
  4. Step 4: Simplify right side
    20,210.96x = 562,038,126.99
  5. Step 5: Solve for x
    x = 562,038,126.99/20,210.96
  6. Step 6: Final answer
    x = 27,808.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.